Communication and Control

Ports Overview

Contact closure input ports

The contact closure inputs on the IPL T CR48 are able to detect a closed circuit between any of the inputs and ground. The contact closure input ports utilize a 1 kohm pull-up resistor in a TTL (5VDC) circuit to sense external switch or contact closure.

By connecting one side of an external switch or relay to the contact closure ground port and the other side to one of the four contact closure input ports, logic 1 (closed) can be produced. Logic 0 (open) can be produced by disconnecting either side of the external switch or relay from the IPL T CR48.

+5V

1K

Figure 4-1 — Equivalent circuit for control closure input

Relay ports

The relay ports can be used for remote switching of low level signals. The relays can be activated via software in three ways, through

1.the Port Settings default Web page found under the Configuration tab (see figure 4-5)

2.Telnet

3.an event script running on the IPL T CR48

The Port Settings Web page allows the user to turn any of the eight relays “on” or “off.”

Telnet allows the user to send SIS commands (Refer to the “Command/response table” later in this chapter) to turn the relays “on” or “off” directly.

Event scripting allows an event script to turn the relays “on” or “off” based on the state of the four inputs on the IPL T CR48, or any other event script conditions.

States of the relay ports are volatile; if a given relay port is “on” and the unit’s power is turned off, the state of the port is not remembered. When the unit is powered on, the relay ports are open and the corresponding LED will be “off.”

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Extron electronic IPL T CR48 manual Communication and Control, Ports Overview, Contact closure input ports, Relay ports
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IPL T CR48 specifications

The Extron IPL T CR48 is a cutting-edge technology solution designed for modern audiovisual environments. As a compact, high-performance control processor, it is specifically tailored for managing and automating AV systems in various settings, including classrooms, conference rooms, and other collaborative spaces. The IPL T CR48 seamlessly integrates with a wide range of Extron products and third-party devices, making it a versatile choice for any AV installation.

One of the main features of the IPL T CR48 is its powerful control capabilities. It supports up to 48 programmable control ports, which allow users to manage multiple displays, projectors, and other audiovisual equipment effortlessly. This extensive control range ensures that every device in the AV system is easily operable from a single interface, streamlining the user experience.

In addition to its impressive control capabilities, the IPL T CR48 integrates advanced IPLink technology. This unique feature allows for remote control and monitoring of AV systems over an IP network, offering system administrators the flexibility to manage equipment from virtually anywhere. This capability is particularly valuable in large installations, where managing multiple systems simultaneously can be complex and time-consuming.

The IPL T CR48 also boasts a user-friendly interface, thanks to its compatibility with Extron's GlobalViewer Enterprise software. This robust software provides users with a web-based platform for real-time monitoring and management of their AV systems. It enables users to configure, schedule, and control their AV devices, ensuring a smooth operation throughout all events and presentations.

Moreover, the IPL T CR48 is engineered with enhanced security features, including customizable user access levels, ensuring that only authorized personnel can control sensitive equipment. This aspect is crucial for educational and corporate environments, where security and privacy are paramount.

Compact and reliable, the IPL T CR48 excels in both functionality and performance. Its durable design and advanced technologies make it a preferred choice among AV professionals looking to improve the efficiency of their installations. Overall, the Extron IPL T CR48 represents a significant advancement in control processing technology, providing a comprehensive solution for diverse audiovisual applications today.
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